Assets on Injective are represented as denoms. Denoms (and the amounts) are not human readable and this is why we need to have a way to "attach" token metadata information for a particular denom.
This page covers a quick overview on the different type of denoms/tokens supported across the injective ecosystem.
This page covers a quick overview on the different ts-script scripts and how they retrieve and format data from different source into the generic TokenStatic type that is used across Injective's FE product suite.
A step by step guide can be found here on Adding a new static token page. Please make sure you read them before you open a PR.
Here are the different tokens json file you can fetch/download to integrate on your product: